Brick-machine



o. BAnTNEss. BRICK MACHINE. APPLICATION FILED JUNE 7* i920 1,358,925.. Patented Nov. 16,1920.

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' BRICK MACHINE. APPLICATION men JUNE 7. |920.

Patented Nv. 16, 1920.

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' UNITED STATES OLAF BARTNESS, OF HAWLEY, MINNESOTA.

BRICK-MACHINE.

Specification of Letters Patent.

Patented Nov. 16, 1920.

Application led .Tulle 7, 1920. Serial No. 387,110.

To all 'whom t may concern:

Be it known that l, OLAF BARTNEss, a citi- Zen of the United States,residing at Hawley, in the county of Clay and State of Minnesota, have invented certain new and useful Improvements in Brick-Machines; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide a simple and highly eflicient brick machine, and to this end, it consists of the novel devices and combinations Vof devices hereinafter described and dened in the claims.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views. Y

Referring to the drawings:

Figure 1 is a frontelevation of the improved machine;

F ig. 2 is a fragmentary end elevation of the same, with some parts shown in different positions by means of broken lines;

Fig. 3 is a plan view; and

Fig. 4 is a view in section taken substantially on the line 4-4 of Fig. 3.

rThe numeral 5 indicates a main frame, which supports a plurality of laterally spaced molds 6 having fixed parallel side and partition plates 7 that are rigidly secured at their rear ends to a single fixed end plate 8. A pair of horizontally spaced nut-equipped rods and spacing thimbles 9 rigidly connect the side and partition plates 7 and hold the same properly spaced. Secured to the side plates 7 is a pair of brackets 10 having vertical guides 11, in which are mounted vertically adjustable bearings 12 located forward of the front ends of the molds 6.

Journaled in the upper ends of the bearings 12 is a rock-shaft 13, to which is rigidly secured a .movable end plate 14 arranged to normally close the front ends of the molds 6. Also rigidly 'secured to the rock-shaft 13, at right angles to the movable end plate 14, are individual bottom plates 15 for the molds 6. These bottom plates 15 are edgewise spaced to clear the partition plates 7 with freedom for raising and lowering movement in the molds 6. Normally, the

bottom plates 15 are supported on the spacing thimbles 9. lt is important to note that the journals for the rock-shaft are offset to impart a horizontal movement to said rockshaft and thereby bring the movable end plate tightly against the front open ends of the molds 6 when the bottom plates 15 are turned into the molds 6, and to bring said movable end plate against the front edges of the guides 11 as stops when the rock-shaft is turned into a position to carry the bottom plates 15 out of said molds. i

Upright stop fingers 16 are rigidly secured to the front edges of the end plates 7 and extend thereabove to afford stops which position the movable end plate 14 at the front ends of the end and partition plates 7 and with the bottom plates in the molds 6. A pair of brackets 17 is secured to the ends of the movable end plate 14 and is provided with deep notches 18, which extend parallel to and above the bottom plates 15 to receive and removably hold a pallet 19 at the upper edge of the movable end plate 14.

By reference to Fig. 2, itvwill be noted that the pallet 19 has notched interlocking engagement with the brackets 17 at 20 to hold the pallet against endwise movement between the brackets 17. l hen the rock-shaft 18 is turned into a position to bring the bottom plates 15 into the molds 6, gravity will lower said rock-shaft and the parts carried thereby, until stopped by the engagement of the bottom plates with the thimbles 9.

To raise the bearings 12 and, hence, the rock-shaft 13 and parts carried thereby, there is provided lazy-tongs 21 actuated by a foot lever 22. This foot lever 22 is longitudinally extensible and contractible and comprises telescopically connected members, the inner of which is rigidly secured to a rock shaft 23 journaled in bearings on the main frame 5. The other or outer member of the lever 22 is held between a pair of upright guides 24 rigidly secured to the frame 5. The lazy-tongs 21 are made up of two relatively short upwardly diverging lower bars 25 and two relatively long crossed bars 26. The lower ends of the bars 25 are pivoted to a bracket 27, which, in turn, is pivoted to the outer member of the foot lever 22. The upper ends of the bars 25 are pivotally connected to the lower ends of the bars 26 and the upper ends of said bars 26 are pivoted to sleeves 2S slidably mounted on a tie-rod 29 secured to and connecting the bearings 12 below the rock-shaft 13. The bars 26, above their crossed portions. are intermediately fulcrumed to a bracket 30 on the main frame 5.

To lock the lazy-tongs 21 in a position with the rock-shaft 13 and parts carried thereby vin a raised position, there is provided a foot lpedal 31 having an arm 32 arranged to engage a ratchet-like notch 33 in the inner face. This foot pedal 31 is pivoted to the free e-nd portion of the foot lever 22 with freedom for suflicient angular movement to carry vthe lock arm 32 into and out of engagement with the lock notch Obviously, with the lock arm 32 interlocked with the lock notch 33 and extending above the bracket -27 lto be engaged thereby, the lazy-tongs 31 are securely held against a movement to lower the rock-shaft 13 and parts carried thereby.

Rigidly secured to the main frame 5, at each side plate 7, is a pair of horizontally spaced channel guide rails 34, in which are mounted bed plates 35, which carry the end members 36 of a tamper frame. The guide rails 34 extend considerably back of the main frame 5 and are all rigidly connected by a tie-bar 37. This tie-bar 37 also affords stops for the tamper frame members 36 to limit the movement of the tamper vframe away from the molds 6. In each tamper frame Ymember 36 is securedl an upright guide 38, on which is mounted, for vertical sliding movement, a relatively long tubular guide 39. These guides 39 carry a tamper bar 40, which affords the connecting member of the tamper frame.

For each Amold 6 is a tamper 41 suspended from the tamper bar 40 by a rigid stem 42. The tampers 41 are normally and yieldingly held raised by coiled springs 43 anchored to the upper ends of the tamper frame members 36 and secured to brackets 44 secured to the guides 38 and the tamperbar 40. The tamper frame is moved by a bail-like handle 45, the arms of which are rigidly secured to the lower end portions of the tamper frame members 36.

Normally, the tamper frame is positioned back of the molds 6, as indicated by full lines in the drawings. During the filling of the molds 6, the material may be tamped, from time to time, by moving the tamper frame forward by means of the handle 45 to position the -tampers 41over the molds 6, as indicated by broken lines in Fig. 6,-and then pressing down on the tamper bar 40 against tension-of the spring 43 to simultaneously carry `all of the tampersy41into the :mold-s and onto the material. This operation may be repeated any number of times, depending upon how much tamping is required. At this time, the bottom plates 15 are firmly held on the thimbles 9 and the movable side plate 14 is firmly held against outward pressure bythe guides 11 and rock-shaft 13.

After the molds 6 are filled, the pallet 19 `is placed in the brackets 17. The operator then presses downward on the footV pedal 31 and gives .the same a slight lateral movement to carry thelock arm 32 out of the lock notch 33 to release the lazy-tongs 21. Then, by a full downward movement of the foot pedal 31, the lazy-tongs 21 are extended to raise the bearings 12 and hence, carry the bottom plates 15 up to the top of the molds 6, together with all of the parts carried thereby and the formed bricks supported thereon.

A forward oscillatory movement of the rock-shaft 13 will invert the bottom plates 15 and thereby cause the same to deposit the formed bricks held thereon onto the pallet 19. A forward sliding movement of the pallet 19 will remove the same from the brackets 17, so that the bricks may be carried to any 'convenient-place where they are to dry.

The above described machine will make bricks of even thickness, which may be raised out ofthe molds and deposited on a pallet, thus preventing the edges thereof from being broken.V 'The construction of the mechanism for raising the bricks out of the mold is extremely simplek and, at the same time, requires very littleeffort on the part of the operator.V The method of .locking the lazy-tongs 21 is such-as to prevent the same from working back and forth whilethe molds are being filled.

While the machine illustrated has a capacity of ten bricks, it is, of course, understood that the capacity thereof may be varied, at will.

Vhat I claim is:

1. In a machine of the kind described, the combination with a frame, of a mold having a fixed end plate and a movable end plate, a rock-shaft to which the movable end plate is secured, a vbottom plate for the mold secured to the rock-shaft, means for raising and lowering the rock-shaft, and a pallet held in respect to the rock-shaft and movable therewith 4from a position over the bottom plate to a position in which the bottom plate overlies the pallet.

2. In a machine of the kind described, the combination with a'frame, of a mold having a fixed end plate and a movable end plate, a rock-shaft to which the movable end plate is .secured,a bottom plate for the mold setherewith from a position over the bottom plate to a position in which the bottom plate overlies the pallet, and a tamper mounted for movement into and out of the mold.

3. In a machine of the kind described, the combination with a iframe, of a mold having a iXed end plate and a movable end plate, a rock-shaft to which the movable end plate is secured, a bottom plate for the mold secured to the rock-shaft, said rock-shaft being mounted tor raising and lowering movement, a foot lever, and lazy-tongs connected to the foot lever for raising and lowering the rock-shaft.

4. In a machine of the kind described, the combination with a frame, of a mold having a fixed end plate and a movable end plate, a rock-shaft to which the movable end plate is secured, a bottom plate for the mold secured to the rock-shaft, said rock-shaft being mounted for raising and lowering movement, a foot lever, lazy-tongs connected to the toot lever for raising and lowering the rock-shaft, and means for locking the lazytongs with the rock-shaft in its lowermost position.

5. In a machine of the kind described, the combination with a frame, of a mold having a lined end plate and a movable end plate, a rock-shaft to which the movable end plate is secured, a bottom plate for the mold secured to the rock-shaft, said rock-shaft being mounted for raising and lowering movement, a foot lever, lazy-tongs connected to the toot lever for raising and lowering the rock-shaft, and a movable foot pedal on the toot lever having means for locking the lazytongs with the rock-shaft in its lowermest position.

6. In a machine of the' kind described, the combination with a frame, of a mold having a lined end plate and a movable end plate, a rock-shaft to which the movable end plate is secured, a bottom plate for the mold secured to the rock-shaft, said rock-shaft being mounted for raising and lowering movement, a foot lever, lazy-tongs connected to the loot lever for raising and lowering the rock-shaft, and a movable Jfoot pedal on the toot lever having an arm arranged for interlocking engagement with the frame to lock the lazy-tongs with the rock-shaft in its lowermost position.

7. In a machine of the kind described, the combination with a frame, of a mold having a lixed end plate and a movable end plate, a rock-shaft to which the movable end plate is secured, a bottom plate for the mold secured to the rock-shaft, said rock-shaft being mounted for raising and lowering movenient, a second rock-shaft mounted on the trame, a longitudinally extensible and con-l tractible foot lever secured to the second rock-shaft, lazy-tongs pivoted to the :toot lever for raising and lowering the first noted rock-shaft, and. a toot pedal pivotally mounted on the foot lever and having an arm arranged to interlock with the frame to secure the lazy-tongs with tne first noted rock-shaft in its lowermost position.

8. In machine ot the kind described, the combination with a trame, ot a mold having a xed end plate and a movable end plate, vertically adjustable bearings mounted on the frame, a tie-rod connecting the bearings,

a rock-shaft mounted on the bearings andhaving the movable end plate secured thereto, a bottom plate for the mold secured to the rock-shaft, brackets on the movable end plate, a removable pallet carried by the brackets and movable with the rock-shaft from position over the bottom plate to a position in which the bottom plate overlies the pallet, a loot lever, and lazy-tongs pivoted to the loot lever and slidably connected to the tie-rod for raising and lowering the bearings for the rock-shaft.

i). In a machine ot the kind described, the combination with a frame, of a mold having a fixed end plate and a movable end plate, a rock-shaft to which the movable end plate is secured, a bottom plate for the mold secured te the rock-shaft, means for raising and lowering the rock-shaft, a pallet held in respect to the rock-shaft, and movable therewith from a position over the bottom plate to a 1position in which the bottom plate overlies the pallet, a tamper trame mounted on the main trame tor horizontal movement, a tamper carried by the tamper frame for vertical movement, and yielding means normally holding the tamper in a raised position.

10. In a machine of the kind described, the combination with a main frame, of a plurality of molds having a iXed end plate and a movable end plate, a rock-shaft to which the movable end plate is secured, a bottom plate for each of the molds secured to the rock-shaft, means for raising and lowering the rock-shaft, brackets secured in respect` to the movable end plate, a removable pallet carried by the brackets and movlli) able with the rock-shaft from a position over the bottom plates to a position in which the bottom plates overlie the pallet, a tamper trame mounted on the main frame for hori- Zontal movement, a plurality of tampers mounted on the tamper frame for simultaneous raising and lowering movement, and yielding means under strain normally holding the tampers raised.

il. In a machine of the kind described, the combination with a main frame, of a plurality of molds having a fixed end plate and a movable end plate, a rock-shaft to which the movable end plate is secured, a bottom plate for each of the molds secured to the rock-shaft, means for raising and lowering the rock-shaft, brackets secured in respect to the movable end plate, a removable pallet carried by the brackets and movable with the rook-shaft from u position over the bottom plates to a position in which the bottom plates overlie the pallet, a horizontally adjustable temper frame including a pair of upriglits, e tie-bar mounted on the upriglits for vertical movement, yielding means under strain to'liold the tie-bar raised, and a plurality of tampers having stems ear- 10 ried by the tie-bar.

In testimony whereof I zulx my signature.

AOLAF BARTNESS. 

